Automatic train-stopping device.



G.`H. EIINIS. AUTOMATIC TRAIN STOTVPING DEV-ICE, APPLICATION FILED DEC. I5, 19M. 1,17935; Patented Apr. 4, 191e.

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l. TENNIS, 0F DERBY, CONNEGTICT.

UTOMATIC TRAN-STOJEPING DEVICE.

Application filed leeember 15, 1914. Serial No. 8??,313.

of Derby, in the county of'NeW Haven and State of lQonneeticut, have made certain new and useful Improvements in Automatic Train-Stopping Devices, of which the following is a specification.

My invention relates to improvements in automatic train stopping d evices and it con sists in the combinations, arrangements, and constructions herein described and claimed.

.An object of my invention is to provide magnetic means for stopping a train in 'which there is no actual contact between the devices carried by the engine and those distributed4 along the track.

A further object of my invention is to provide a device ot' the type described in which the magnetic devices which are distributed along the track act upon an armature in such a manner as to release a weight, the release et the weight serving to actuate the throttle lever7 the brake lever, to 'blow the Whistle, or to actuate electrical mechanism lor the controlling ot the rector, in case electricity should be used 'instead of steam. K

A further object of my invention is to provide a device having a magnetically op y erated trip in which a minimum of mag i. at i and 2 in Fig.

netic force is necessary.

A lfurther object of my invention is to provide a device having' an armature so arranged as to insure the operation ot1 the train stoppingn mechanism no matter how fast the train is going.

Other objects and advantages will appear in the following` specification and the novel features of the device will be particularlyT pointed out in the appended claims.

My invention is illustrated in the accompanying drawings 'forming part of this application in whicl Figure l is a Jface vieiv of the device. certain parts being shown in sectiolnllig. Q is a diagrammatic view showing the arrangement of the magnets on the track and the means for energizing the same, and Fig. 3 is a section along theline 3 3 4of Fig. l..

ln carrying out my invention I make use of ordinary track rails such as those shown Secured to the outer side of the raiL by any suitable means such as plates 3 and bolts l is a series ol magnets 5. As will beseen from the drawings these Specification of Letters Patent.

'Patented Apr.. Il.,

magnets are arranged vizith their poles en tending upwardly, the ends of the poles being in alinement. rlhe magnets are preterably arranged at the ends of the track sections. rlhus in Fig. 2 the end of section iii is separated from the section B at the points Carried preferably by the body 6 of the engine eab is a plurality of downwardly extending U-shaped brackets? which may be secured by means of bolts 8 or in any other suitable manner. In Fig. l l have shown two of thesefbrackets, but it will be understood that as many may loe-provided as is necessary. Arranged to extend through threaded openings 9 in the bottoni. portions of the brackets is a bolt l0. The lower part of this bolt is smooth and extends through an opening li in an armature ll. lBosses such as that shown atl are provided for giving an extended bearing to the engaging portion of the bolt l0. Each of the brackets is provided with a bolt 10 arranged to eX- tend through an opening in the armature ll similar to that already described. A :cross bar 13 is also threaded, 'to receive the bolts l0 and is provided Witiran opening lil. Nuts 15 may be screwed on the ends oit' the bolts 10 so as to hold the cross bar 13 in position, the bar forming a brace Jlier the brackets 'l'.

Secured to the body G of the is a cao ing-'16 having at its lovver end a dash pot 17 having a small opening i8 for the escape of air. A frame i9 is disposed, Within the casing upon which may be .mounted weights Q0. rlhe frame has a downwardly extending; rod 21 which passes through the end of the casing 16 and which is provided with a plunger 29. arranged te recipr cate in the casing 17 and which forms part of the dash pot. To 'the upper end of the frame i9 are connected the flexible cables 23, 2e and 25.` The former runs over an idler 26 and is connected with the throttle lever 27 which has the usual locking segment 28. The cable 24 passes over the idler 29 and is secured to the brake lever 30 which is acted on by a spring 3l. The cable 25 may extend to a whistle or to an electric switch (not shown) for operating these devices on the movement of the weight 20.

Secured to the bottom of the body portion G of the cab is a plate 32 upon which a lever 33 is pivoted on a fixed pivot 34. The

.plate 32 bears a lower stop member 35 and titi ilo

.el I 1 News the level' il being connected :incl the lever being ivotzilly moimtecl on e fixed lug at 45. A

ink Llli connects the point il by means oli e pivotal connection 47 to the lever 33,

Fiom the foregoing description of the' lvarious parte ol the device the operation tbezeoi3 may be readily understood.

The magnets, before stated, are sii'enggecl preferably et the escls of the truck seetioii, but they :moy be arranged :it :my point along tlie track :it which it is desired to stoptlie train automatically. ln Fig. L, l have .sbajmvn a :means by which the insg nets `may be eiiergizecl Tiglis is merely for tlie purpose oil illustration, since tbe meg nets be energized by closing e switch manually or in any other wey. ln Fig. S2 l lieve. shown tbe semaphore arm 1 s. Contact 43 connected by conductor e9 witli e batteiy lll amil when in tbe elezti' posi-- tion., as shown in Fig. Q, it is out of engage ment with e Contact 50 connected to e coilcluctor 5l. The battery ooniieetefl 'to e lead Wire 52 while the ooiioluotoi 5l cob neotecl with e lead wire lis 1will be seen from this drawing tbe magnets are eiialigefl in parallel, being eo'sieeteiil 'to tbe leali Wires 52 :incl blow when 'tbe semaphore is brought up into the danger position oontact is msfleet 4850 and current will flow from the bat/twy through fil), if?, 50,' 5l, 52E, through jtlie magnets .and bock to battery B, thus energizing tlie magnets.

The apparatus on the sog-ine is set, es shown in l. .it will be noted 'that the frame 19 beuiing tbe Weights Q0 is lielol in am upper' pos" ion by mee-ns oi" tbe bellorenk lever which pi'ojeets through im opening l ill the @seing lll. The lysine i9 cannot be moved downwardly because the bellersnli level is held in this position, silice tliepointe 1li?, 14 :incl l5 are in elisemeiit. llne levers el'zle 43 loom. e toggle joint nri'migement.. When new the joint is liexecl, the bell-omni: lever 39 will swing out oi the wey of' the :Emme il? bearing the weiglitsl snol the letter' will descend. Suppose new the trein wit the apparatus set reaches the point Where time li-imsture .l1 will pass just above tlie imfgeets in 'llie siiiietuie will be drown doivil'iv'srdly, tlms pulling on the core 5l enel by memo oi the lever 33 and link it will move' tiielevels Lll and All! into the llotteil lille position in l, thus llexiiig tbe joint and. causing the ifetrsotioio of the bellers'oll: level* B9 whereupon the Weight in :tortille lll will. Sousse the letter is in tuin connected with it as having sullioient to descend. The rapidity)7 of this action is governed by the construction of' tlie clsslipot, tlie opening i8 being suoli as to time the notion pioberlv in connection with s given weight in the frame. The downivaid movement of the frame 19 Will cause the opeizition of the throttle lever and also the brake levez and may cause the blowing of tlie Whistle, o1' if the device is equipped with electrical Controlling means, is for instance 75 ivliei'e the engine is an electric engine and not a steam engine, the cable 25 may be caused to actuate the controlling means so es to stop 'the tra-in. lnforflei' to reset the apparatus it only necessary to lift up- Waiflly on any oi the cables connected with tlio frame i9 bearing the Weights 20, for

when the end of tbe ici-lime lios cleared the emi of the bellerank lever 39, the spiingv 37 acting on the lever 38 Will again bring tbe toggle joint into suoli position that the poini's ll :mtl 45 will. again be in alinemel'it so that the fre-me may then be rested on tile bell-crank lever without :my danger of flexing; tbe toggle joint. lt Will be understood, of course, that the cables will have sleek to permit the operation of the vmious levels suoli the tbiottle lever nml bra-Alie level' Without movement of the iframe, but tlm-t when the frame is pemittef e5 to fliop it 'will opefste tbe tliiottle lever so as to stoo tl .fie tesis smi operate the brake lever so as to set lie biakes. This is a meie ma f, of sfljustment. rllie chewing is merely l-or tbe purpose of illusti'eting tbe'loo @Deletion ami is not il tended to be drawn 'to scale. lt is necessary obli1 to move the bellerzizik lever 39 fai' enough to permit the frame i9 to drop. The stop 32 may be used to limit the .aiio'vement of the toggle los joint flevioe.

lt will be noted tliefe is no actuel Contact betweentlie magnets escl the orma ture. lt will also be noted that the throttle level' and brake lever, whistle, ete., are operlle by gravity, the msgnetio let/'ice being mei-ely usefl to trip the frame i9 beosiiig the Weights 20. Obviously more oi' less weights een be plfli'oecl in. tile frame 19 engl :i spring 3i having geel-iter or less tension 115 may be used to restore the Weiglitholding device to its normal position, tliese details being; :i mee mattei" ol experiment under given conditions.

l claim: l. 'llie combination with e tisok having a series oi magnets disposed beside the rails, of en engine having trein-Controlling cleviees, brackets carried by said engine, aoljustziblo bolts esrriecl by ssi brackets, en armature movable toward oiicl. evi/ey from the track mils,y :incl being guided in its movenxen; b v seid bolts, s easing secuecl to ssicl engine body, :i vertically slidebie frame disposed Within seid easing, and arranged to lso 1,178,305 een carry weights, means including a trip for holding said 'frame in in upper position, a fiexibie cable connected with said armature and having operative connection with said trip foi-holding said armature iu an upper position` the passage of the engine above said magnets serving to attract the armature heieby releasing the trip and permitting the freine to fall, and flexible cables connected with: said frame at one end and wirt-h said eonii'olling devices at the other.

The combination with :i track having :i series of magnets disposed beside the rails, oi' an engine having train-controlling clevices, biaekes earl-ieri by said. engine, adjusnble bolsycnrried, by said brackets, an armature movable toward and away from the track rails, and being guided in its inovenient by said bolts, a casing secured to nie i'raine said engine body, a vertically disposed within said casing, euri mi: iged to the frame.

GEORGE H. EXS..

Witnesses z L. A. STANLEY, Solairel C. Knifox. 

